3398765 has 4 divisors (see below), whose sum is σ = 4078524. Its totient is φ = 2719008.

The previous prime is 3398761. The next prime is 3398851. The reversal of 3398765 is 5678933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5678933 = 13 ⋅436841.

It can be written as a sum of positive squares in 2 ways, for example, as 1142761 + 2256004 = 1069^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 3398765 - 2² = 3398761 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 3¹³ + 9⁴ + 8 + 7⁶ + 6⁵ + 5⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3398761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339872 + ... + 339881.

It is an arithmetic number, because the mean of its divisors is an integer number (1019631).

Almost surely, 2^3398765 is an apocalyptic number.

It is an amenable number.

3398765 is a deficient number, since it is larger than the sum of its proper divisors (679759).

3398765 is an equidigital number, since it uses as much as digits as its factorization.

3398765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679758.

The product of its digits is 136080, while the sum is 41.

The square root of 3398765 is about 1843.5739746482. The cubic root of 3398765 is about 150.3512509173.

The spelling of 3398765 in words is "three million, three hundred ninety-eight thousand, seven hundred sixty-five".